Valve-spring lifter



' JTT'OPNEYS.

1% mm 7 2 7 J G. GUINAND.

VALVE SPRING LIFTER.

APPLICATION FILED DEC L1, 1919 e. GUINANDQ VALVE SPRING LIFTER.

APPLICATION FILED DEC. H, I919.

1,352,407, PatentedSept. 7, 1920.

.14/ VENT'OIP. 62/5 774 v/ as GU/A/A ND- BY MW 7'0RNEYS.

G. GUINAND. VALVE SPRING LIFTER.

PatentedSept. 7, 1920.

APPLICATION FILED 05c. 11. 1919.

a SHEETS-SHEET 3.

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UNHTEfi GUSTAVIUS GUINAND, or LOS ANGELES, cnLrrOnma- VALVE-SPRING LIFTER.

Application filed December 11, 1919. Serial No. 344,159.

To all whomit may concern:

Be it known that I, GUSTAVIUS GUI'NAND, a citizen of the United States, residing at Los' Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Valve-Spring Lifters, of which the following is a specification.

This invention relates to a device for facilitating the removal of the spring seat supporting pins of internal combustion engine valve stems, and has for its object to provide a jack that may be readily applied with facility to enable. the removal of the pins in various constructions of internal combustion motors, it being a further object of the invention to provide a lifting device or jack thathas its parts so constructed that they may be easily rearranged or connected as the exigency with relation to the construction of the motor may determine.

With. these and other objects in view the invention consists of the construction and details an embodiment of which is illustrated in the accompanying drawings and described and claimed herein.

Figure 1 is a plan view of the improved vice showing still another mode of use.

In Figs. 1 to 3 the lifting jack is illustrated in one assembly or organization of the parts in which a base forming member in the form of an elongated plate 2 is shown,

one end of the plate being extended in the form of a bifurcated tongue 3'to be strad- .dled over or rested upon any convenient portion asthe boss 1 of an internal combustion engine having a valve rod 5 with an actuating spring 6 normally pressing downwardly on a spring collar 7 which in Specification'of Letters Patent.

Fig. 5 is a side elevation of the lifting def Patented removable pin 8 passing through the valve tends a handle or shaft section 1e that may be providedwitli a cross bar 15, whereby the operator may readily :rotate the cam shaft 11 from a position in which the shaft section 1% is angularly'disposed with relation to the axis of the cam shaft 11 thereby enabling theready and efficient use of the device in engines of various types ofconstruction, and in which 113' would be desir- Sept. a, man.

able to enable the mechanic to operate thelifting jack through means of a flexible shaft. l The eccentric cam 10 is shown as engaging a roller 16 mounted on a' shaft 17 that is disposed transversely across a frame 18 or hollow structure lever the rear end of which has a hub portion 19 through which extends a pivot pin 20' preferablyrigidly mounted in the hub 19, the projecting ends of the pivot pin being adapted to slidefreely into and be removable from a pair of'be'aring ears 21 that are slotted as at 22 ontheir front edges to permit the free insertion and removal of the pivot pin 20 on which there is preferably mounted a pivot J bail-23, the transverse bar of which straddles the bearing ears 21 and is adapted to be turned downwardly to an interlocking position as shown in Fig. 2 so. as to prevent undesirable or accidental removal or play of the lever member 18 and yet permit the entire removal of the-latter by swinging the bail 23 to an. uppermost position over the top of the bearing cars 21. To facilitate this movement of the bail 23 it may be pro I mentary roller 16. are provided with interengaging guide. means to secure perfect tracking of thesemeinbers and prevent lat- V eral play. and as shown in Fig 3 the cam its lowermost position is supported by ,a is provided. with a transversely concav stages as it is lifted by the cam 10, a suit-' groove 10 in which runs a complementary peripheral convex bead 16 on the roller 16. The end of the lever 18 that is disposed above, the bifurcated tongue 3 of the base.

member is provided with a rocking chair 25 that is centrally slotted as at 26 to be readily passed around the stem 5 of the.

valve and to engage under. the lower surface-of the spring collar 7, clearly shown in Fig. 2, the chair having diametrically opposite pivots 27 in the arcuate ends 18 of the lever 18; the chair 25 being pivotally mounted so that it will remain in parallel position to the lower edge of the collar 7 While the latter is being lifted irrespective able latch or detent device is provided and is adaptedto automatically. snap into lock the parts while it is carried by the other part. In this case a latch 28 is provided with a removable pivot or pin 29that can be adjusted into one or another of the apertures 30 provided in the hollow lever member 18, this pin also being adjustable in one or another of a series of apertures 31 pro vided in the shank of the latch 28.

One edge of the latch is slotted or serrated as at 32 and the lower and serrated end of this latch is normally thrown outwardly to engage the adjacent end Wall of the slot '2 in the base member 2 and at the back of the tongue 3 by'means of a contractile spring 33 that may be hooked removably into one or another of the apertures 81 in the latch member, and has its opposite GIlCbllOOliBtl into an ear or otherwise suitably connected to an upstanding'bow 34 here shown in the form of a U-shaped member straddling the parallel sides of the lifting lever 18. r V

' From the above it will be seen that when the mechanic desires 'to'remove the spring supporting pin 8 from the valve stem5 the improved tool will be applied to the supporting part as t below the spring collar 7 and the flexible shaft 11-14 so disposedthat the cam 10 will be swung downto permit the lever 18 to lie substantially parallel to the base member 2 at which time the latch 28 V will have been projected downwardly through the slot 2 but thrown with its lower portion into contact with the end wall of the slot by the reaction of the spring 38.

The mechanic adjusts the chair 25 under ing engagement with one or the other of the collar -7 and then by turning the flexible shaft 1114 in either direction causes the lever 18 to tilt upwardly on its fulcrum 20 and thus lift the spring .collar 7 and compress the spring 6 meanwhile the latch 28 automatically clicks into interlocking position at its'several'teeth 32 so that the collar is automatically locked at successive stages against downward movement. It is obvious that as soon as the valve collar has been lifted to the desired extent the pin 8 can then be readily withdrawn. d

Cases may be encountered where it is no convenient to utilize the tool when it is "organized'as shown in Figs. 1 and 2, and I have therefore provided for the rearrangement of the base member 2 and the lever 18 so that 'a form of extended simple lever can be secured, this being plainly-illustrated in Fig. 4, wherein the lever 18 is shown as pivoted in the reverse position in the slotted ears 21 instead of in the position shown in Fig. 2 so that the lever 1.8 extends in the opposite direction and is supported against lat eral swaying movement with respect to the base member 2 by means of a saddle 85 formed or provided on the end of the member 2 to encompass the side faces of the lever 18. r In this arrangement the spring 38 ffll'S connected from the latch 28 and the latter is inverted with respect to the lever 18 and the pin or pivot 29 passed through suitable of the alined perforations 30-31 so that one end of the latch 28, that is provided with a yoke 28, can be set against an adjacent flange or boss i with the chair 25 placed into engagement with the lower and outer surface of the spring collar 7, and therefore when the extended lever organization 2-18 V is pressed downwardly in the direction of the arrow, Fig. 1, the shorter of the lever carrying the chair 2'5- and tilting about the pin 29 may be readily forced upwardly to lift the collar 7 away from the pin 8 of the stem 5. It will be obvious that in this case the actuating cam 10 is not utilized.

A further mode of utilizing the tool is illustrated in Fig. 5 wherein the base memher 2 and the lever 18 are shownin the extended position of Fig. 4:, but the latch 28 is either entirely removed from the member 18 or is not utilized and a fulcrum for the lever is secured as by means of a knotted cable or' wire 4O having'a hook "11 at its upper end and any of the knots 410 of the cable being passed into a fork 42 that is;

provided-on and extends 'rearwar'dly from the bow member 34 to which the spring is attached.

It will be seen thatin this case the hanger member 40 can have its hook ll slipped over any suitable angular part as at the top-of, the valve head and one of the knots lt) of the cable or wire 40 passed below and into the crotch of the fork 42 and then the outer end of the lever device can be pressed downwardly so that it will rock on the fulcrum forming knot below the fork and the chair end of the lever lifted to compress the spring 6, as clearly shown, to remove the collar from the pin 8.

Various changes maybe made without departing from the spirit of my invention as claimed.

I claim:

1. A valve spring lifting device comprising a base member having a tongue to straddle or rest upon a supporting part, a lifting lever connected at one end to the base-member and having at the other end above the tongue a yoke to take around a valve stem below the spring, a spring latch mounted on one of the parts to engage the other and support it against the load of the spring, and a manually operable cam mounted upon the base member for jacking up the lever.

2. A valve spring lifting device comprising a base member having a tongue to straddle or rest upon a supporting part, a lifting lever detaehably connected at one end to the base member and having at the other end above the tongue a yoke to take around a valve stem below the spring, a spring latch mounted on one of the parts to engage the other and support it against the load of the spring, and a manually operable cam mounted upon the base member for jacking up the lever.

3. A valve spring lifting device comprising a base member having a tongue to straddle or rest upon a supporting part, a lifting lever slidably connected at one end to the base member and having at the other end above the tongue a yoke to take around a valve stem below the spring, a spring latch mounted on one of the parts to engage the other and support. it against the load of the spring, and a manually operable cam mounted upon the base member for jacking up the lever.

A valve spring lifting device comprising a base member having a tongue to straddle or rest upon a supporting part, a lifting lever connected at one end to the base member and having at the other end above the tongue a yoke to take around a valve stem below the spring and a rocking chair therein to engage the valve spring seat, a

spring latch mounted on one ofthe parts.

to engage the other and support it against the load of the spring, and a manually operable cam mounted uponthe base member for jacking up the lever.

5. A valve spring lifting device comprising a base member having a tongue to straddle or rest upon a supporting part, a lifting lever connected at one end to the base member and having at the other end above the tongue a yoke to take around a valve stem below the spring, a spring latch m0unted on one of the parts to engage the other and support it against the load of the spring, a manually operable cam mounted upon the base member for jacking up the lever, and a roller on the lever to engage the cam.

6. A valve spring lifting device comprising a base member having a tongue to straddle or rest upon a supporting part, a lifting lever connectedat one end to the base member and having at the other end above the tongue a yoke to take around a valve stem below the spring, a spring latch mounted on one of the parts to engage theother and support it against the load of the spring, a manually oaerable cam mounted upon the base member, for jacking up the lever, and a flexible shaft extending from the cam. V

7. A valve spring lifting device comprising a base member having a tongue to straddle or rest upon a supporting part, a lifting lever connected at one end to the base member and having at the other end above the tongue a yoke to take around a valve stem below the spring, a spring latch mounted on one of the partsto engage the other and support it against the load of the spring, and a manually operable cam mounted upon the base member for jacking up the lever, the lever being reversible on the base and the latch invertible to form a truss on which the extended lever can rock.

ing a base member having a tongue to straddle or rest upon a supporting part, a lifting lever connected at one end to the base member and having at the other end a yoke to take around a valve stem below the spring, a spring latch mounted on one of the GUSTAVIUS GUINAN D.

' 8. A valve spring lifting device, compris 

